Mutinous_Scallywag
Cadet
- Joined
- May 5, 2021
- Messages
- 7
Due to a series of "evolving" plans, I have a reman 351W with E7TE heads on the way. The original 2 engines had E8JL heads. I previously had one of the heads on the dead engine rebuilt, and I ordered an E8 core with the intention of having that rebuilt too. Giving me two E8 heads. Plus the E7s on the new engine, of course.
Now, I'm likely going to pull the heads off the reman engine either way, to make it easier to hoist the block into place. Question is, should I put the E7s back on again after I'm done, or continue with rebuilding the E8s? If I do the latter, then at least the heads on both engines will match.
On the other hand, E7s are way easier to find in the long run. So there's that. What's the difference in terms of performance? The E8s are "two bar" heads, while the E7s are one bar. I've even heard rumblings that the E8s are an early version of GT40 heads. However, looking at them, the thermactor bumps in the exhaust ports are way bigger than those in the E7s.
Since the new engine is bored out with a new cam installed, the performance won't match up perfectly anyway. So I may be splitting hairs. Any thoughts?
Now, I'm likely going to pull the heads off the reman engine either way, to make it easier to hoist the block into place. Question is, should I put the E7s back on again after I'm done, or continue with rebuilding the E8s? If I do the latter, then at least the heads on both engines will match.
On the other hand, E7s are way easier to find in the long run. So there's that. What's the difference in terms of performance? The E8s are "two bar" heads, while the E7s are one bar. I've even heard rumblings that the E8s are an early version of GT40 heads. However, looking at them, the thermactor bumps in the exhaust ports are way bigger than those in the E7s.
Since the new engine is bored out with a new cam installed, the performance won't match up perfectly anyway. So I may be splitting hairs. Any thoughts?